News Release
Celanese Corporation
222 West Las Colinas Blvd.
Suite 900N
Irving, Texas 75039
KACO Relies On High-Temperature Fortron® PPS from Celanese
to Help Solve Sealing Challenges for VW Engine Components
Ideal Material for Weight Reduction and Cost Saving
Sulzbach, Germany, Florence, Ky., Shanghai, PR China, Oct. 16, 2013 – Sealing system
manufacturer KACO, Heilbronn (SABÓ-Group, São Paulo) has developed an innovative
sealing shim and flange that relies on high-temperature Fortron® polyphenylene sulfide
(PPS) from Celanese Corporation (NYSE: CE), the global technology and specialty
materials company.
Crank case, sealing flange and oil pan: Three components meet in a small space under
the hood and have to be sealed statically against one another. The flange also has to
ensure dynamic sealing to the crankshaft.
A seal made from a new friction-reduced polytetrafluoroethylene (PTFE) compound, in
conjunction with Fortron 4332L6 PPS, is used in the production of the flange. The
optimized sealing shim design and the structure of the sealing flange enable considerable
cost savings due to the integration of several functions in one component. The PTFE
sleeve ensures dynamic sealing while a special silicone seal sprayed directly onto the
flange ensures the static sealing to the oil pan and to the crank case. A plasma activation
process specially developed by KACO ensures the bonding of the PPS material to the
PTFE sealing shim. This ensures firm bonding of the two materials thus dispensing with
the need for the wet chemical etching technique previously often used in such production
steps. A previously used multi-pole wheel is replaced by a steel sensor wheel developed
especially for VW. Together with a Hall sensor with a magnet it supplies additional
information for engine management thus enabling start/stop technology for example.
Ideal Material Properties
Weight reduction and cost saving were the key reasons KACO chose Fortron PPS. Other
important properties included:
•
High temperature resistance, from -40 degrees Celsius to 150 degrees Celsius (-40
degrees Fahrenheit to 302 degrees Fahrenheit) and short-term 170 degrees Celsius
(338 degrees Fahrenheit)
•
Stiffness and strength
•
Resistance to chemicals
•
Outstanding dimensional stability and low creep
Fortron PPS has passed numerous and extensive material tests for resistance to modern
engine oils that frequently include aggressive additives.
About Celanese
Celanese Corporation is a global technology leader in the production of differentiated chemistry
solutions and specialty materials used in most major industries and consumer applications. With
sales almost equally divided between North America, Europe and Asia, the company uses the full
breadth of its global chemistry, technology and business expertise to create value for customers
and the corporation. Celanese partners with customers to solve their most critical needs while
making a positive impact on its communities and the world. Based in Dallas, Texas, Celanese
employs approximately 7,600 employees worldwide and had 2012 net sales of $6.4 billion. For
more information about Celanese Corporation and its product offerings, visit www.celanese.com or
our blog at www.celaneseblog.com.
All registered trademarks are owned by Celanese or its affiliates.
Celanese Business Unit Contacts:
Engineered Materials:
Americas:
Stephen Cushard, Global Marketing Communications Manager
+1-859-372-3164
[email protected]
Europe:
Henning Küll, Public Relations Manager
+49-69-45009-1797
[email protected]
Asia:
Amber Zhao, Marketing Communications
+86-21-3861-9222
[email protected]
Forward-Looking Statements
This release may contain “forward-looking statements,” which include information concerning the company’s
plans, objectives, goals, strategies, future revenues or performance, capital expenditures, financing needs and
other information that is not historical information. When used in this release, the words “outlook,” “forecast,”
“estimates,” “expects,” “anticipates,” “projects,” “plans,” “intends,” “believes,” and variations of such words or
similar expressions are intended to identify forward-looking statements. All forward-looking statements are
based upon current expectations and beliefs and various assumptions. There can be no assurance that the
company will realize these expectations or that these beliefs will prove correct. There are a number of risks
and uncertainties that could cause actual results to differ materially from the forward-looking statements
contained in this release. Numerous factors, many of which are beyond the company’s control, could cause
actual results to differ materially from those expressed as forward-looking statements. These factors include
the inability to obtain regulatory approvals of the transaction and satisfy conditions on the proposed terms and
schedule and the possibility that the transaction does not close. Other risk factors include those that are
discussed in the company’s filings with the Securities and Exchange Commission. Any forward-looking
statement speaks only as of the date on which it is made, and the company undertakes no obligation to update
any forward-looking statements to reflect events or circumstances after the date on which it is made or to
reflect the occurrence of anticipated or unanticipated events or circumstances.
###
High Temperature Solution — KACO engine flange relies on high-temperature Fortron®
polyphenylene sulfide (PPS) from Celanese Corporation to help seal key underhood
components.